Description

Potassiumdichromateextrapure CAS NO 778-50-9 is a high-purity inorganic salt known for its potent oxidizing properties. This compound is critical for processes requiring a reliable and strong oxidizing agent with consistent reactivity. It is essential for manufacturers and laboratories in sectors such as analytical chemistry, metal treatment, and specialty synthesis where precise and controlled oxidation is paramount.

Application

• As a primary standard and oxidizing agent in volumetric analysis (titrations) within analytical laboratories.
• In the surface treatment and finishing of metals, particularly for cleaning and etching processes.
• As a key component in the formulation of wood preservatives and corrosion inhibitors.
• For the synthesis of other chromium compounds and as an oxidizing agent in organic chemical synthesis.
• In traditional photographic processing and screen printing applications.
• Used in specific glass and ceramic coloring processes.

Basic Information

Product Name	Potassiumdichromateextrapure CAS NO 778-50-9
CAS No.	778-50-9
Molecular Formula	K2Cr2O7
Molecular Weight	294.18 g/mol
Synonyms	Potassium Bichromate; Potassium Dichromate(VI); Dipotassium Dichromate; Dichromic Acid, Dipotassium Salt; Chromic Acid, Dipotassium Salt; Kaliumdichromat; IUPAC: Dipotassium Oxido-(oxido-dioxo-chromio)oxy-dioxo-chromium
EINECS	232-143-1

Quality Control

Our Potassium Dichromate Extra Pure is manufactured under strict quality systems to ensure batch-to-batch consistency and high chemical purity. The product is tested against rigorous in-house specifications, which may align with recognized reagent-grade standards. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after use to prevent absorption of atmospheric moisture. Store separately from reducing agents, organic materials, and strong acids.

Specification

Item	Specification
Appearance	Orange-red crystals
Identification (IR)	Conforms
Assay (K2Cr2O7)	≥ 99.5 %
Insoluble Matter	≤ 0.005 %
Chloride (Cl)	≤ 0.001 %
Sulfate (SO4)	≤ 0.005 %
Calcium (Ca)	≤ 0.005 %
Iron (Fe)	≤ 0.001 %
Sodium (Na)	≤ 0.02 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.